/Engine/Source/Runtime/GameplayTags/Classes/BlueprintGameplayTagLibrary.h
Get an array of all actors of a specific class (or subclass of that class) which match the specified gameplay tag query.
static void GetAllActorsOfClassMatchingTagQuery ( [UObject](API\Runtime\CoreUObject\UObject\UObject) * WorldContextObject, [TSubclassOf](API\Runtime\CoreUObject\Templates\TSubclassOf)< [AActor](API\Runtime\Engine\GameFramework\AActor) > ActorClass, const [FGameplayTagQuery](API\Runtime\GameplayTags\FGameplayTagQuery) & GameplayTagQuery, [TArray](API\Runtime\Core\Containers\TArray)< [AActor](API\Runtime\Engine\GameFramework\AActor) * > & OutActors )